Butterworth_low_pass_and_high_pass_filters

Its about cryptography example. useful for chatting with some sort of security

this file reads the serial input in matlab and plot it graph

说明：  数字图像修复算法的评价标准也是从两个方面进行评价的，一个是修 复算法的效率，一个是修复后图像质量。修复算法的效率主要就是看修复 图像所用的时间，可以用时间就行量化。而图像质量很难从量上唯一的进 行评价，目前图像修复质量还没有统一的评价标准，从实际应用出发，修 复后图像质量的好坏大多数是从以下两个方面就行评价，修复后图像给人 主观上的“满意度”和客观上图像的cnr、enl、epi、psnr、snr来评判。(The evaluation criteria of digital image restoration algorithms are also evaluated from two aspects, one is repair. One of the efficiency of complex algorithm is the image quality after restoration. The efficiency of the repair algorithm depends mainly on the repair. The time spent on the image can be quantified in terms of time. But image quality is difficult to improve quantitatively only. At present, there is no uniform evaluation criterion for image restoration quality. Starting from practical application, repair The quality of restored images is mostly evaluated from the following two aspects, and the restored images are given to people. Subjective "satisfaction" and objective image cnr, enl, epi, psnr, SNR to judge.)

《MATLAB7.0从入门到精通》全书源码，包括使用说明。(MATLAB7.0 From Novice to Professional book source code, including instructions for use.)

在MIT的meep中，用来计算银表面的折射率和吸收率。用于FDTD算法。(Meep at MIT, the silver surface used to calculate the refractive index and absorption rate. For the FDTD algorithm.)

肠型胃癌的基因表达谱数据。已经处理好。空缺值用均值代替。 第一行是肠型胃癌基因表达谱数据中样本的类别

这些资料都是有关数学建模所用的SPPS软件的资料，希望对大家有帮助。(These data are used for mathematical modeling of SPPS software information, we want to help.)

非常很好地用于股指期货动态对冲，用于股指期货动态对冲，用于股指期货动态对冲(Used for stock index futures dynamic hedge，Used for stock index futures dynamic hedge)

自己学习matlab时做的课程试验 内容：试验报告和灰度图像的线性非线性展宽(Matlab when you learn to do the pilot courses : the test report and a linear gray-scale image nonlinear wide)

散点数据生成格网,2d,3d,vc6.0,matlab6.5(Source- scatter data generated grid)